Turntable



R. A. McCLURE AND W. W. BOULTON.

TURNTABLE.

APPLICATION HLED JUNE 19, 191B.

Patented Apr. 6, 1920.

2 .3) viqQsaa4! O O O INVENTOR S WBOAl flaw K W 'ROYAL Amccwm WILURM UNITED STATES PATENT OFFICE.

ROYAL A. MCCLURE AND WILLIAM XV. BOULTON, OF SEATTLE, WASHINGTON, ASSIGNORS T0 UNIVERSAL ELEVATED RAILWAY COMPANY, OF SEATTLE,

WASHINGTON.

TURNTABLE.

Specification of Letters Patent.

Patented Apr. 6, 1920.

Application filed June 19, 1918. Serial No. 241,079.

To all whom it may concern:

Be it known that we, ROYAL A. MGCLURE and WILLIAM W. BOULTON, citizens of the United States, residing at Seattle, in the county of King and State of Washington, have jointly invented a new and useful Improvement in Turntables, of which the following is a specification.

This invention relates to improvements in turntables for single rail elevated track crossings and the like, and the object of this invention is to provide a turntable that possesses rigidity in construction and positive exactness in operation.

Further objects will appear from the following specification, illustrated in the accompanying drawings and finally pointed out in the appended claim.

In the drawings, Figure 1 is a plan view of the turntable and Fig. 2 is a side elevation of the same, showing the rail thereof as it appears when in alinement with the track.

Referring more particularly to the drawings, in which like numerals indicate like parts, the numeral 1 indicates a stanchion and 2 are braces, of which there are preferably four in number. These braces are rigidly attached to the stanchion 1 and extend upwardly at an angle therefrom and serve as a support at their upper ends for the track rails 3.

4 is a circular raceway, provided on the upper end of the stanchion 1 and 5 is a circular elevated guard of less diameter than the raceway.

Rotatably mounted upon this raceway is a turntable which comprises a carriage base 8 for wheels 6 rotatably mounted upon shafts 7 attached to said base in any well known manner, and 9 is a horizontal rail mounted upon the upper portion of said carriage base.

Where turntables have been employed in the prior art, no provision has been made for counteracting the tendency of the end rails of the tract from sagging out of aline- 'ment with the rail of the turntable. This fatal defect has been overcome by inclining outwardly the ends of the rail of the turntable slightly from the vertical, as at 10, and in having the ends of the track rail annularly recessed, as at 11, to conform in contour thereto when the rail of the turntable is brought into alinement therewith.

12 is a bracket that is attached to the braces 2 having an outwardly projecting flange 13 that engages a similar flange 15 of the bracket 14. This latter bracket is attached to the bottom portion of either end of the rail 9 and serves to prevent further rotation of the turntable beyond the plane of rail alinement with the track.

Obviously, changes in the detail of construction can be resorted to within the scope of the following claim.

WVhat I claim, and desire to protect by Letters Patent, is:

A turntable of the class described comprising a stanchion, a plurality of braces rigidly connected to the side of said stanchion and extending upwardly at an angle therefrom, a circular raceway provided on the upper end of said stanchion, a carriage base having wheels adapted to rotate upon said raceway, a rail mounted on said carriage base, stationary track rails mounted upon the upper portions of said braces, and means for preventing vertical displacement of said track rails when the rail of said turntable is brought into alinement therewith.

Signed by us at Seattle, lVashington, this 13th day of June, 1918.

ROYAL A. NIoCLUR-E. TVILLIAM W. BOULTON. Witnesses:

R. J. Coon, D, C. KUHNs. 

